Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1001
Invesco S&P 500 Equal Weight Health Care ETF
RSPH
$715M
| $131K | ﹤0.01% |
5,580
+4,370
| +361% | +$103K |
|
1002
Williams Companies
WMB
$71.8B
| $131K | ﹤0.01% |
+6,676
| New | +$131K |
|
|
MDP
1003
DELISTED
Meredith Corporation
MDP
| $131K | ﹤0.01% |
10,019
-39,799
| -80% | -$520K |
|
|
HOME
1004
DELISTED
At Home Group Inc.
HOME
| $131K | ﹤0.01% |
+8,854
| New | +$131K |
|
1005
BellRing Brands
BRBR
$4.63B
| $130K | ﹤0.01% |
6,283
+5,986
| +2,015% | +$124K |
|
1006
BRF SA
BRFS
$5.99B
| $130K | ﹤0.01% |
39,857
-106,848
| -73% | -$349K |
|
1007
Stratasys
SSYS
$838M
| $130K | ﹤0.01% |
10,430
-9,146
| -47% | -$114K |
|
|
TWO
1008
Two Harbors Investment
TWO
$1.05B
| $130K | ﹤0.01% |
6,387
-589
| -8% | -$12K |
|
|
ATHX
1009
DELISTED
Athersys, Inc. Common Stock
ATHX
| $130K | ﹤0.01% |
2,671
+399
| +18% | +$19.4K |
|
1010
BridgeBio Pharma
BBIO
$10.1B
| $129K | ﹤0.01% |
+3,463
| New | +$129K |
|
1011
Energy Fuels
UUUU
$2.89B
| $128K | ﹤0.01% |
76,503
+68,243
| +826% | +$114K |
|
|
DCP
1012
DELISTED
DCP Midstream, LP
DCP
| $128K | ﹤0.01% |
11,539
-23,306
| -67% | -$259K |
|
1013
Koppers
KOP
$543M
| $127K | ﹤0.01% |
6,098
-5,327
| -47% | -$111K |
|
1014
Pembina Pipeline
PBA
$22.5B
| $127K | ﹤0.01% |
+6,012
| New | +$127K |
|
1015
Public Storage
PSA
$51.7B
| $127K | ﹤0.01% |
+574
| New | +$127K |
|
|
CUTR
1016
DELISTED
Cutera, Inc.
CUTR
| $125K | ﹤0.01% |
6,605
+3,810
| +136% | +$72.1K |
|
1017
Ardmore Shipping
ASC
$502M
| $124K | ﹤0.01% |
35,086
+26,326
| +301% | +$93K |
|
1018
KE Holdings
BEKE
$23.8B
| $124K | ﹤0.01% |
+2,030
| New | +$124K |
|
1019
SPDR Dow Jones Industrial Average ETF Trust
DIA
$39.7B
| $124K | ﹤0.01% |
450
| – | – |
|
|
EVBG
1020
DELISTED
Everbridge, Inc. Common Stock
EVBG
| $124K | ﹤0.01% |
994
-1,995
| -67% | -$249K |
|
1021
Black Hills Corp
BKH
$4.28B
| $123K | ﹤0.01% |
+2,302
| New | +$123K |
|
1022
Ciena
CIEN
$18.7B
| $123K | ﹤0.01% |
3,119
+1,549
| +99% | +$61.1K |
|
1023
Barclays
BCS
$72.8B
| $122K | ﹤0.01% |
24,461
-115,356
| -83% | -$575K |
|
1024
Chefs' Warehouse
CHEF
$2.63B
| $122K | ﹤0.01% |
+8,428
| New | +$122K |
|
1025
GoPro
GPRO
$316M
| $122K | ﹤0.01% |
+27,150
| New | +$122K |
|